Isiah Kiner-Falefa
Isiah Kiner-Falefa is a 31-year-old second baseman for the Boston Red Sox. He is a contact-first second baseman with a good glove and good speed, ranked 269th in the league at the position.
About these ratings
Tool ratings combine recorded performance with statistical estimates. Speed, arm, and fielding include outcome-based estimates rather than direct physical measurements.
Current club control is unverified. Any usable estimate uses the last available contract inputs and does not establish current trade rights.
CE inputs: Current contract information is unavailable. CE uses a neutral 100* fallback.
Neutral fallback: 0* NTV and 100* CE keep this player available in simulations while required inputs are reviewed.
* On NTV, this indicates estimated or unverified inputs. CE uses an asterisk only when current contract information is unavailable.
CE uses the best available contract information, including partial terms, estimated salaries, and projected team control. CE shows an asterisk only when current contract information is unavailable; free agents without a current agreement use 100*.
2026 win contribution
1.62 Player Wins · 0.78 expected from replacement · 0.84 wins above replacement
Includes contributions to every team played for in 2026. Perf expresses wins above replacement on a scale where 100 is average. How the win totals reconcile
Six-tool graphs show percentiles from available performance evidence. Speed uses baserunning outcomes; Arm uses position-adjusted throwing outcomes. Movement describes tracked pitch movement within pitch type. Minor-league comparisons account for competition level; unavailable measurements display MD.
Edge Profile
Edge combines Perf, Stick, and Carry to show how valuable a player is right now. With a Perf of 97, Stick of 79, and Carry of 101, Isiah Kiner-Falefa sits in the 74th percentile, 9th percentile, and 75th percentile in those areas. His 83 Edge lands in the 52nd percentile and ranks 38th among second basemen.
Stick Profile
Stick looks beyond the immediate results and estimates what should hold over a larger sample. Isiah Kiner-Falefa's 79 Stick suggests he is outperforming what his underlying profile supports. It also places him in the 9th percentile and ranks 81st among second basemen.
Perf Profile
Perf measures season wins above replacement after allocating each team's actual wins to its players. It includes Isiah Kiner-Falefa's contributions to every team he played for. His 97 Perf is around average on a scale where 100 is average and 20 points is one standard deviation. It sits in the 74th percentile and ranks 28th among second basemen.
Carry Profile
Carry places Perf in the context of the roster around a player and includes a bounded clutch adjustment for offense, pitching, and defense when available. Close games and later innings earn more weight, and difficult defensive plays receive their own credit. His clutch runs are offense -1.0, pitching +0.0, defense +2.5. The strongest rated teammates are Wilyer Abreu at 140, Willson Contreras at 131, and Payton Tolle at 118. Isiah Kiner-Falefa has contributed about as much as his own Perf suggests, resulting in a Carry of 101.
LI Profile
LI looks at how much useful baseball a player may still have ahead of him. At age 31, Isiah Kiner-Falefa carries a 105 LI, which points to a steady near-term outlook without a major longevity advantage. That places him in the 47th percentile and ranks 291st among second basemen.
CE Profile
100* CE is a neutral placeholder because a usable contract-value estimate cannot yet be calculated. It keeps Isiah Kiner-Falefa available in simulations and does not establish fair contract value.
NTV Profile
0* NTV is a neutral placeholder, not a finding that Isiah Kiner-Falefa has no value. Required inputs are incomplete; the player remains selectable in every simulation.